Which junction is allowing water or movement?
Commercial flashing can meet parapet walls, rooftop curbs, equipment bases, drains, skylights, expansion joints and perimeter edges. Each junction can fail differently. A lifted membrane leg, open termination, cracked sealant, loose counterflashing or corroded edge metal should be recorded as an observed condition, not condensed into a generic statement that the flashing is bad. We compare the vertical and horizontal sides of the connection and follow any visible route toward the reported interior area. The connection geometry determines whether roof flashing and penetration work can rebuild the entire junction.
The wall or equipment above a flashing can also be the source of movement or water. A roof repair cannot correct a leaking masonry joint, failed window perimeter or unsecured equipment base outside the roofing scope. We identify that dependency and arrange the affected connection so the right trade can restore its component before the roof is closed. If access does not allow the full termination to be seen, the proposal should preserve that limit and explain what additional opening would reveal. At a perimeter, our edge metal and coping repair scope should include its receiving support and termination.